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A novel household water insecurity scale: Procedures and psychometric analysis among postpartum women in western Kenya

Author

Listed:
  • Godfred O Boateng
  • Shalean M Collins
  • Patrick Mbullo
  • Pauline Wekesa
  • Maricianah Onono
  • Torsten B Neilands
  • Sera L Young

Abstract

Our ability to measure household-level food insecurity has revealed its critical role in a range of physical, psychosocial, and health outcomes. Currently, there is no analogous, standardized instrument for quantifying household-level water insecurity, which prevents us from understanding both its prevalence and consequences. Therefore, our objectives were to develop and validate a household water insecurity scale appropriate for use in our cohort in western Kenya. We used a range of qualitative techniques to develop a preliminary set of 29 household water insecurity questions and administered those questions at 15 and 18 months postpartum, concurrent with a suite of other survey modules. These data were complemented by data on quantity of water used and stored, and microbiological quality. Inter-item and item-total correlations were performed to reduce scale items to 20. Exploratory factor and parallel analyses were used to determine the latent factor structure; a unidimensional scale was hypothesized and tested using confirmatory factor and bifactor analyses, along with multiple statistical fit indices. Reliability was assessed using Cronbach’s alpha and the coefficient of stability, which produced a coefficient alpha of 0.97 at 15 and 18 months postpartum and a coefficient of stability of 0.62. Predictive, convergent and discriminant validity of the final household water insecurity scale were supported based on relationships with food insecurity, perceived stress, per capita household water use, and time and money spent acquiring water. The resultant scale is a valid and reliable instrument. It can be used in this setting to test a range of hypotheses about the role of household water insecurity in numerous physical and psychosocial health outcomes, to identify the households most vulnerable to water insecurity, and to evaluate the effects of water-related interventions. To extend its applicability, we encourage efforts to develop a cross-culturally valid scale using robust qualitative and quantitative techniques.

Suggested Citation

  • Godfred O Boateng & Shalean M Collins & Patrick Mbullo & Pauline Wekesa & Maricianah Onono & Torsten B Neilands & Sera L Young, 2018. "A novel household water insecurity scale: Procedures and psychometric analysis among postpartum women in western Kenya," PLOS ONE, Public Library of Science, vol. 13(6), pages 1-28, June.
    • Handle: RePEc:plo:pone00:0198591
    DOI: 10.1371/journal.pone.0198591
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    References listed on IDEAS

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    Cited by:

    1. Boateng, Godfred O. & Workman, Cassandra L. & Miller, Joshua D. & Onono, Maricianah & Neilands, Torsten B. & Young, Sera L., 2022. "The syndemic effects of food insecurity, water insecurity, and HIV on depressive symptomatology among Kenyan women," Social Science & Medicine, Elsevier, vol. 295(C).
    2. Boateng, Godfred O. & Balogun, Mobolanle R. & Dada, Festus O. & Armah, Frederick A., 2020. "Household energy insecurity: dimensions and consequences for women, infants and children in low- and middle-income countries," Social Science & Medicine, Elsevier, vol. 258(C).

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